THE LIMBS OF THE HOESE 



63 



lateral edge of the liexoi; tendons, it enters the narrow mterval between 

 the fourth metacarpal bone and the middle interosseous muscle, and 



M. extensor digitoruni communis' 



Lig. coUateiale niediale. 



M. interosseus. 



N. volaris medialis 

 (ramus dorsalis). 



A. digitalis volaris medialis.- 

 N, volaris medialis (ramus volaris) 



V. digitalis medialis.'^ 



M. extensor digiti quinti. 



Third metacarpal bone. 



Lig. collaterale laterale. 



Sesamoid. 



— ^V, digitalis lateralis. 



. N. volaris lateralis (ramus 



dorsarlis). 

 ^- A. digitalis volaris lateralis. 



^ N. volaris lateralis (ramus 

 volaris). 



^M. flexor digitorum sublimis. 

 M. flexor digitorum profundus. .^ 

 ]7i<5. 43. — Section across the Distal End of the Metacarpus as indicated by J in Fig. 30. 



thereafter pursues a course comparable to that of the medial artery 

 of the same name. 



In the proximal part of the metacarpus transverse vessels unite 



rirst phalanx. ^ 



M. interosseus.- 



M. extensor digitorum communis. 



V. digitalis medialis. 



N. volaris medialis (ramus 

 dorsalis). 

 A. digitalis volaris medialis. 



!N". volaris medialis (ramus -' 

 volaris). 



Lig. sesamoideumobliqunm./ 



M. interosseus. 



-V. digitalis lateralis. 



--N. volaris lateralis (ramus 

 dorsalis). 



N. volaris lateralis (ramus 

 volaris). 



Lig, sesamoideum rectum. 



M. flexor digitorum profundus. 



: • A- digitalis volaris lateralis. 



■ Lig. sesamoideum obliquum. 



M. flexor digitorum sublimis. 



Fig. 44. — Section across the First Phalanx at the Level indicated by K in Fig. 30. 



the two volar metacarpal arteries by crossing the limb deep and 



superficial to the middle interosseous muscle. These communicating 



vessels constitute the dem? .^p/ar , arc/4, (arcus volaris profundus). 



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